Income Taxes - Components of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 24, 2021	Apr. 25, 2020	Apr. 27, 2019
Current:
Federal	$ 36,836	$ 18,300	$ (19)
Foreign	9,975	7,501	9,207
State	8,771	4,959	3,402
Total current expense	55,582	30,760	12,590
Deferred:
Federal	(7,529)	(25,918)	9,709
Foreign	(362)	164	(53)
State	(2,869)	(6,046)	1,106
Total deferred (benefit) expense	(10,760)	(31,800)	10,762
Income tax expense (benefit)	$ 44,822	$ (1,040)	$ 23,352